Difference between revisions of "IEEE 802.15.4"
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* Cipher Block Chaining Message Authentication Code ([http://en.wikipedia.org/wiki/CBC-MAC CBC-MAC]): Authentication only. | * Cipher Block Chaining Message Authentication Code ([http://en.wikipedia.org/wiki/CBC-MAC CBC-MAC]): Authentication only. | ||
* Counter with CBC-MAC ([http://en.wikipedia.org/wiki/CCM_mode CCM]): Encryption and authentication. | * Counter with CBC-MAC ([http://en.wikipedia.org/wiki/CCM_mode CCM]): Encryption and authentication. | ||
| − | + | For the last two modes, the authentication tag can be 32, 64 or 128 bits. | |
== Compliant transceivers == | == Compliant transceivers == | ||
Revision as of 02:52, 17 March 2010
The IEEE 802.15.4 is a specification for the physical and MAC layers of wireless personal area networks.
Security
IEEE 802.15.4 media access control layer defines different security modes based on the AES block cipher:
- Null: neither encryption nor authentication. Default mode.
- Counter mode (CTR): Encryption only. No authentication.
- Cipher Block Chaining Message Authentication Code (CBC-MAC): Authentication only.
- Counter with CBC-MAC (CCM): Encryption and authentication.
For the last two modes, the authentication tag can be 32, 64 or 128 bits.
